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Pat. 11342878 United States, Int. Cl.22 H02P 27/08, H02M 1/44, H02M 5/458, H03L 7/08. Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensors : Appl. N 17/227143 : Filed 09.04.2021 : Pub. 24.05.2022 : / Ahmed Hisham Abuelnaga, Mehdi Narimani, Zhongyuan Cheng, Navid R. Zargari ; Assignee Rockwell Automation Technologies Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11342878/en?oq=US11342878.html (дата обращения: ДД.ММ.ГГГГ).